outside
//ˌaʊtˈsaɪd//
Noun
The external side or surface of something; the outer part or area.
The outside of the building needs to be painted.
The space or area beyond the boundaries or confines of a building or enclosed space.
The children are playing on the outside.
The external appearance or outward aspect of something.
On the outside, the building looks old, but inside it's very modern.
Adjective
Located on or relating to the outer side or surface.
The outside wall of the building needs to be painted.
Coming from or originating beyond a particular group or organization; external.
We need outside help to complete this project.
Not belonging to or connected with a particular group or activity.
We need outside help to complete this project.
Adverb
On or to the exterior; not inside a building or enclosed space.
The children are playing outside.
Beyond the limits or boundaries of something.
We don't deliver outside the city.
Antonym
Preposition
Beyond the boundaries or confines of; not within.
Don't go outside the building.
Beyond the limits or scope of something.
This issue is outside my area of expertise.